Tau The symbol(the lower case Greek letter tau) has many common uses in mathematics, as summarized in the following table. 1.is an alternate notation for thedivisor function. 2.is thehalf-period ratioof anelliptic function. 3.denotes thetau functionof Ramanujan, defined by thegenerating functi...
The aurochs was one of Europe’s most important mammal species. In the Greek myth about the founding of Europe, Zeus in the form of an aurochs bull seduces and kidnaps the beautiful princess Europa. Since then the aurochs and its descendants – our present day cattle breeds – have played ...
The shape of the latter had its origin in ancient Chaldea, and was used as the symbol of the god Tammuz (being in the shape of the mystic Tau, the initial of his name) in that country and in adjacent lands, including Egypt.” 后者的形状源于古代的迦勒底,在这个国家和邻近的国家里,包括...
Tau refers to the nineteenth letter of the Greek alphabet. Its numerical value is 300. Tau came from the Phoenician letter, taw and it further gave rise to the Roman letter T and the Cyrillic letter Te.
c. 1200, "graphic symbol, alphabetic sign, written character conveying information about sound in speech," from Old French letre "character, letter; missive, note," in plural, "literature, writing, learning" (10c., Modern French lettre), from Latin littera (also litera) "letter o ...